WordPress and $_GET Params
For custom parameters you should register them with WordPress: add_action(‘init’,’wpse46108_register_param’); function wpse46108_register_param() { global $wp; $wp->add_query_var(‘anyParamName’); } Then the value of ‘anyParamName’ can be found with get_query_var $anyParamNameValue = get_query_var(‘anyParamName’).